Diagnostic system and method for fuel cell stack

摘要

A diagnostic system and method for a fuel cell stack that diagnoses the state and/or failure of the fuel cell stack. More specifically, the diagnostic control analyzer diagnoses and analyzes the state of the fuel cell stack by measuring the voltage and the current received from the fuel cell stack. To do this, an AC signal generator cogenerates a diagnostic AC signal according to the control upon receiving a control command form the analyzer, and an AC component driving element is then driven upon receiving the AC signal that is output from the AC signal generator in order to include a diagnostic AC component within the current of the fuel cell stack. In particular, the diagnostic control analyzer diagnoses the fuel cell stack based on a voltage and a current received from the fuel cell stack that includes the AC component via a load.

主权项

1. A diagnostic system of a fuel cell stack, comprising:
a diagnostic control analyzer configured to diagnose and analyze a state of the fuel cell stack by measuring a voltage and a current of the fuel cell stack; an AC signal generator configured to generate a diagnostic AC signal upon receiving a control command from the diagnostic control analyzer; an AC component driving element configured to be driven according to the diagnostic AC signal that is output from the AC signal generator to include a diagnostic AC component within the current from the fuel cell stack; and an AC current injector configured to selectively overlap an AC current with the current of the fuel cell stack based upon receiving a control command from the diagnostic control analyzer.